我的磁盘是否出现故障并导致Linux负载过高？

Linux 前端之家
前端之家收集整理的这篇文章主要介绍了我的磁盘是否出现故障并导致Linux负载过高？，前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。
今天我做了apt-get update&& Linux Ubuntu 12.04.5 LTS服务器上的apt-get升级.一切都很顺利.四个小时后,监控工具提醒我磁盘I / O过载.在8核系统上,I / O等待已达到10-40％,系统平均负载从1上升到20.网站变得非常缓慢.
看起来像磁盘或硬件不好,但我不太确定.我应该去哪里挖？任何帮助赞赏.

uname -a：

Linux p-de-www 3.2.0-77-generic #114-Ubuntu SMP Tue Mar 10 17:26:03 UTC 2015 x86_64     x86_64 x86_64 GNU/Linux

最佳：

top - 16:19:59 up  1:38,3 users,load average: 11.54,7.46,5.76
    Tasks: 217 total,1 running,216 sleeping,0 stopped,0 zombie
    cpu(s):  1.3%us,0.2%sy,0.0%ni,80.9%id,17.6%wa,0.0%hi,0.0%si,0.0%st
    Mem:  16126212k total,4153684k used,11972528k free,193392k buffers
    Swap:  8387568k total,0k used,8387568k free,2281864k cached

在syslog中有一堆ACPI错误.

在/ var / log / messages中：

root@p-de-www:~# tail -n 100 /var/log/messages
Mar 19 15:51:01 p-de-www kernel: [ 4184.716158] ata1: hard resetting link
Mar 19 15:51:02 p-de-www kernel: [ 4185.763378] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 15:51:02 p-de-www kernel: [ 4185.882753] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 15:51:02 p-de-www kernel: [ 4185.882761] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 15:51:02 p-de-www kernel: [ 4185.883514] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 15:51:02 p-de-www kernel: [ 4185.883523] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 15:51:02 p-de-www kernel: [ 4185.883842] ata1.00: configured for UDMA/133
Mar 19 15:51:02 p-de-www kernel: [ 4185.883860] ata1: EH complete
Mar 19 15:52:19 p-de-www kernel: [ 4262.752244] ata1: hard resetting link
Mar 19 15:52:24 p-de-www kernel: [ 4268.109057] ata1: link is slow to respond,please be patient (ready=0)
Mar 19 15:52:26 p-de-www kernel: [ 4269.676180] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 15:52:26 p-de-www kernel: [ 4269.769475] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 15:52:26 p-de-www kernel: [ 4269.769483] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 15:52:26 p-de-www kernel: [ 4269.770244] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 15:52:26 p-de-www kernel: [ 4269.770251] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 15:52:26 p-de-www kernel: [ 4269.770483] ata1.00: configured for UDMA/133
Mar 19 15:52:26 p-de-www kernel: [ 4269.770496] ata1.00: retrying FLUSH 0xea Emask 0x4
Mar 19 15:52:26 p-de-www kernel: [ 4269.770587] ata1.00: device reported invalid CHS sector 0
Mar 19 15:52:26 p-de-www kernel: [ 4269.770604] ata1: EH complete
Mar 19 15:54:39 p-de-www kernel: [ 4402.577394] ata1.00: limiting speed to UDMA/100:PIO4
Mar 19 15:54:39 p-de-www kernel: [ 4402.577557] ata1: hard resetting link
Mar 19 15:54:44 p-de-www kernel: [ 4407.934367] ata1: link is slow to respond,please be patient (ready=0)
Mar 19 15:54:49 p-de-www kernel: [ 4412.579786] ata1: hard resetting link
Mar 19 15:54:51 p-de-www kernel: [ 4415.362269] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 15:54:51 p-de-www kernel: [ 4415.475792] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 15:54:51 p-de-www kernel: [ 4415.475800] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 15:54:51 p-de-www kernel: [ 4415.476645] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 15:54:51 p-de-www kernel: [ 4415.476653] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 15:54:51 p-de-www kernel: [ 4415.476905] ata1.00: configured for UDMA/100
Mar 19 15:54:51 p-de-www kernel: [ 4415.476934] ata1: EH complete
Mar 19 15:55:13 p-de-www kernel: [ 4436.542443] ata1: hard resetting link
Mar 19 15:55:15 p-de-www kernel: [ 4438.876963] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 15:55:15 p-de-www kernel: [ 4438.959075] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 15:55:15 p-de-www kernel: [ 4438.959084] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 15:55:15 p-de-www kernel: [ 4438.959905] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 15:55:15 p-de-www kernel: [ 4438.959914] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 15:55:15 p-de-www kernel: [ 4438.960212] ata1.00: configured for UDMA/100
Mar 19 15:55:15 p-de-www kernel: [ 4438.960235] ata1: EH complete
Mar 19 16:17:32 p-de-www kernel: [ 5774.861347] ata1: hard resetting link
Mar 19 16:17:33 p-de-www kernel: [ 5776.132497] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 16:17:33 p-de-www kernel: [ 5776.248345] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:17:33 p-de-www kernel: [ 5776.248353] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:17:33 p-de-www kernel: [ 5776.249163] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:17:33 p-de-www kernel: [ 5776.249172] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:17:33 p-de-www kernel: [ 5776.249441] ata1.00: configured for UDMA/100
Mar 19 16:17:33 p-de-www kernel: [ 5776.249445] ata1.00: retrying FLUSH 0xea Emask 0x4
Mar 19 16:17:33 p-de-www kernel: [ 5776.249538] ata1.00: device reported invalid CHS sector 0
Mar 19 16:17:33 p-de-www kernel: [ 5776.249547] ata1: EH complete
Mar 19 16:18:34 p-de-www kernel: [ 5836.778503] ata1: hard resetting link
Mar 19 16:18:37 p-de-www kernel: [ 5840.400297] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 16:18:37 p-de-www kernel: [ 5840.500401] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:18:37 p-de-www kernel: [ 5840.500409] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:18:37 p-de-www kernel: [ 5840.501223] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:18:37 p-de-www kernel: [ 5840.501231] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:18:37 p-de-www kernel: [ 5840.501468] ata1.00: configured for UDMA/100
Mar 19 16:18:37 p-de-www kernel: [ 5840.501481] ata1.00: retrying FLUSH 0xea Emask 0x4
Mar 19 16:18:37 p-de-www kernel: [ 5840.501589] ata1: EH complete
Mar 19 16:19:38 p-de-www kernel: [ 5900.742501] ata1: hard resetting link
Mar 19 16:19:40 p-de-www kernel: [ 5903.077048] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 16:19:40 p-de-www kernel: [ 5903.077537] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:19:40 p-de-www kernel: [ 5903.077546] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:19:40 p-de-www kernel: [ 5903.078334] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:19:40 p-de-www kernel: [ 5903.078342] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:19:40 p-de-www kernel: [ 5903.078579] ata1.00: configured for UDMA/100
Mar 19 16:19:40 p-de-www kernel: [ 5903.078582] ata1.00: retrying FLUSH 0xea Emask 0x4
Mar 19 16:19:40 p-de-www kernel: [ 5903.078679] ata1: EH complete
Mar 19 16:21:24 p-de-www kernel: [ 6006.666736] ata1.00: limiting speed to UDMA/33:PIO4
Mar 19 16:21:24 p-de-www kernel: [ 6006.666867] ata1: hard resetting link
Mar 19 16:21:29 p-de-www kernel: [ 6012.023734] ata1: link is slow to respond,please be patient (ready=0)
Mar 19 16:21:34 p-de-www kernel: [ 6016.669145] ata1: hard resetting link
Mar 19 16:21:39 p-de-www kernel: [ 6022.026105] ata1: link is slow to respond,please be patient (ready=0)
Mar 19 16:21:44 p-de-www kernel: [ 6026.671575] ata1: hard resetting link
Mar 19 16:21:46 p-de-www kernel: [ 6028.726319] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 16:21:46 p-de-www kernel: [ 6028.824829] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:21:46 p-de-www kernel: [ 6028.824836] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:21:46 p-de-www kernel: [ 6028.825575] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:21:46 p-de-www kernel: [ 6028.825579] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:21:46 p-de-www kernel: [ 6028.825811] ata1.00: configured for UDMA/33
Mar 19 16:21:46 p-de-www kernel: [ 6028.825815] ata1.00: retrying FLUSH 0xea Emask 0x4
Mar 19 16:21:46 p-de-www kernel: [ 6028.825918] ata1.00: device reported invalid CHS sector 0
Mar 19 16:21:46 p-de-www kernel: [ 6028.825925] ata1: EH complete
Mar 19 16:22:07 p-de-www kernel: [ 6049.650737] ata1: hard resetting link
Mar 19 16:22:12 p-de-www kernel: [ 6055.007538] ata1: link is slow to respond,please be patient (ready=0)
Mar 19 16:22:17 p-de-www kernel: [ 6059.652963] ata1: hard resetting link
Mar 19 16:22:22 p-de-www kernel: [ 6065.009914] ata1: link is slow to respond,please be patient (ready=0)
Mar 19 16:22:23 p-de-www kernel: [ 6065.849433] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 16:22:23 p-de-www kernel: [ 6065.978240] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:22:23 p-de-www kernel: [ 6065.978248] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:22:23 p-de-www kernel: [ 6065.979084] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:22:23 p-de-www kernel: [ 6065.979092] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:22:23 p-de-www kernel: [ 6065.979403] ata1.00: configured for UDMA/33
Mar 19 16:22:23 p-de-www kernel: [ 6065.979424] ata1: EH complete
Mar 19 16:22:51 p-de-www kernel: [ 6093.626046] ata1: hard resetting link
Mar 19 16:22:51 p-de-www kernel: [ 6094.113597] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 19 16:22:51 p-de-www kernel: [ 6094.226485] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:22:51 p-de-www kernel: [ 6094.226492] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:22:51 p-de-www kernel: [ 6094.227269] ACPI Error: [DSSP] Namespace lookup failure,AE_NOT_FOUND (20110623/psargs-359)
Mar 19 16:22:51 p-de-www kernel: [ 6094.227276] ACPI Error: Method parse/execution Failed [\_SB_.PCI0.SAT0.SPT0._GTF] (Node ffff880405e726b8),AE_NOT_FOUND (20110623/psparse-536)
Mar 19 16:22:51 p-de-www kernel: [ 6094.227513] ata1.00: configured for UDMA/33
Mar 19 16:22:51 p-de-www kernel: [ 6094.227541] ata1: EH complete

软件RAID1中有2个磁盘：

root@p-de-www:~# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md1 : active raid1 sdb2[1] sda2[0]
      524276 blocks super 1.2 [2/2] [UU]

md0 : active raid1 sdb1[1] sda1[0]
      8387572 blocks super 1.2 [2/2] [UU]

md3 : active raid1 sdb4[1] sda4[0]
      1847608639 blocks super 1.2 [2/2] [UU]

md2 : active raid1 sdb3[1] sda3[0]
      1073740664 blocks super 1.2 [2/2] [UU]

iotop看起来很好,这些尖刺很少：

377 be/3 root        0.00 B/s   82.29 K/s  0.00 %  7.28 % [jbd2/md2-8]

smartctl -a / dev / sda的输出：

=== START OF INFORMATION SECTION ===
Device Model:     ST3000DM001-1CH166
Serial Number:    W1F1YLLX
LU WWN Device Id: 5 000c50 05dd292d0
Firmware Version: CC24
User Capacity:    3,000,592,982,016 bytes [3.00 TB]
Sector Sizes:     512 bytes logical,4096 bytes physical
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   8
ATA Standard is:  ATA-8-ACS revision 4
Local Time is:    Thu Mar 19 16:55:48 2015 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82) Offline data collection activity
                                        was completed without error.
                                        Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0) The prevIoUs self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (  584) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 255) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x3085) SCT Status supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_Failed RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   102   099   006    Pre-fail  Always       -       195880648
  3 Spin_Up_Time            0x0003   094   094   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       10
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   087   060   030    Pre-fail  Always       -       502482545
  9 Power_On_Hours          0x0032   079   079   000    Old_age   Always       -       18486
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       10
183 Runtime_Bad_Block       0x0032   097   097   000    Old_age   Always       -       3
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   097   095   000    Old_age   Always       -       197571510318
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   070   061   045    Old_age   Always       -       30 (Min/Max 27/35)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       9
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       877
194 Temperature_Celsius     0x0022   030   040   000    Old_age   Always       -       30 (0 20 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       80
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       80
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       79985175971891
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       32009289003
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       178724571355

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%         5         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans,do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up,resume after 0 minute delay.

smartctl -a / dev / sdb的输出：

=== START OF INFORMATION SECTION ===
Device Model:     ST3000DM001-1CH166
Serial Number:    W1F1VM8Q
LU WWN Device Id: 5 000c50 05dbdcafe
Firmware Version: CC24
User Capacity:    3,4096 bytes physical
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   8
ATA Standard is:  ATA-8-ACS revision 4
Local Time is:    Thu Mar 19 16:57:57 2015 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82) Offline data collection activity
                                        was completed without error.
                                        Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0) The prevIoUs self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (  600) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 255) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x3085) SCT Status supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_Failed RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   118   099   006    Pre-fail  Always       -       178849088
  3 Spin_Up_Time            0x0003   094   094   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       10
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   087   060   030    Pre-fail  Always       -       498642529
  9 Power_On_Hours          0x0032   079   079   000    Old_age   Always       -       18467
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       10
183 Runtime_Bad_Block       0x0032   099   099   000    Old_age   Always       -       1
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   082   082   000    Old_age   Always       -       18
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   070   062   045    Old_age   Always       -       30 (Min/Max 26/35)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       9
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       876
194 Temperature_Celsius     0x0022   030   040   000    Old_age   Always       -       30 (0 20 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       44448616564768
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       55043480738
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       154979931141

SMART Error Log Version: 1
ATA Error Count: 18 (device log contains only the most recent five errors)
        CR = Command Register [HEX]
        FR = Features Register [HEX]
        SC = Sector Count Register [HEX]
        SN = Sector Number Register [HEX]
        CL = Cylinder Low Register [HEX]
        CH = Cylinder High Register [HEX]
        DH = Device/Head Register [HEX]
        DC = Device Command Register [HEX]
        ER = Error register [HEX]
        ST = Status register [HEX]
Powered_Up_Time is measured from power on,and printed as
DDd+hh:mm:SS.sss where DD=days,hh=hours,mm=minutes,SS=sec,and sss=millisec. It "wraps" after 49.710 days.

Error 18 occurred at disk power-on lifetime: 18168 hours (757 days + 0 hours)
  When the command that caused the error occurred,the device was active or idle.

  After command completion occurred,registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 a0 7e 17 05  Error: UNC at LBA = 0x05177ea0 = 85425824

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 a0 7e 17 45 00  16d+20:43:03.906  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  16d+20:43:03.905  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  16d+20:43:03.905  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  16d+20:43:03.905  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  16d+20:43:03.905  SET FEATURES [Set transfer mode]

Error 17 occurred at disk power-on lifetime: 18168 hours (757 days + 0 hours)
  When the command that caused the error occurred,registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 a0 7e 17 05  Error: UNC at LBA = 0x05177ea0 = 85425824

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 a0 7e 17 45 00  16d+20:43:01.000  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  16d+20:43:01.000  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  16d+20:43:01.000  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  16d+20:43:01.000  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  16d+20:43:01.000  SET FEATURES [Set transfer mode]

Error 16 occurred at disk power-on lifetime: 18168 hours (757 days + 0 hours)
  When the command that caused the error occurred,registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 a0 7e 17 05  Error: UNC at LBA = 0x05177ea0 = 85425824

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 a0 7e 17 45 00  16d+20:42:58.104  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  16d+20:42:58.104  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  16d+20:42:58.104  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  16d+20:42:58.104  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  16d+20:42:58.104  SET FEATURES [Set transfer mode]

Error 15 occurred at disk power-on lifetime: 18168 hours (757 days + 0 hours)
  When the command that caused the error occurred,registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 a0 7e 17 05  Error: UNC at LBA = 0x05177ea0 = 85425824

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 a0 7e 17 45 00  16d+20:42:55.196  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  16d+20:42:55.196  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  16d+20:42:55.196  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  16d+20:42:55.196  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  16d+20:42:55.196  SET FEATURES [Set transfer mode]

Error 14 occurred at disk power-on lifetime: 18168 hours (757 days + 0 hours)
  When the command that caused the error occurred,registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 a0 7e 17 05  Error: UNC at LBA = 0x05177ea0 = 85425824

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 a0 7e 17 45 00  16d+20:42:52.257  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  16d+20:42:52.257  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  16d+20:42:52.257  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  16d+20:42:52.256  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  16d+20:42:52.256  SET FEATURES [Set transfer mode]

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%         5         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans,resume after 0 minute delay.

解决方法

你有一段时间没有运行SMART自测.尝试运行smartctl -t long< device>.
它应该需要几个小时,你可以看到smartctl -a的进展： 
Self-test execution status:      (   0) The prevIoUs self-test routine completed
                                    without error or no self-test has ever
                                    been run.

如果它没有像上一次运行那样没有完成,那么当驱动器是新的时：

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%         5         -

只是摆脱驱动器.

我的猜测是@kasperd是对的.智能日志中出现sata错误/错误的驱动器已损坏.

顺便说一句.高负载和损坏驱动器之间的关系来自负载测量. load是许多等待执行的进程.等待驱动器返回数据的进程确实正在等待执行.

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